[Nitrogen cooling for ammonia production plants]

A case of a two-stage system that cools outside air, increasing the air flow rate to winter flow levels.

We would like to introduce a case where the flow rate returned to winter levels at an ammonia plant in the southeastern United States, resulting in an improvement in ammonia production to 38 tons per day. The company attempted to restore the flow rate by cooling the air entering the compressor, but the reliability of the cooling system was poor, and it could not maintain the necessary air flow rate. As a solution, a two-stage system was devised to cool the outside air, and an air conditioning unit was designed to cool the outside air within the filter housing. The two-stage system increased the air flow rate to winter levels, approximately 48,000-50,000 pounds per hour, even when the temperature rose, achieving an air flow rate of about 5,550-7,500 pounds per hour. [Challenges] - The density of outside air in summer is low, leading to a decrease in flow rate and a reduction in ammonia production. - The reliability of the cooling system was poor, and it could not maintain the necessary air flow rate. *For more details, please download the PDF or feel free to contact us.*

Cooling system